.el-header {
    /*background-color: #B3C0D1;*/
    color: #333;
    text-align: center;
    line-height: 60px;
}

.el-aside {
    color: #333;
    text-align: center;
    line-height: 200px;
    width: 200px;
    border-right: 2px solid #cbced5;
}
.el-main {
    color: #333;
    text-align: center;
    padding: 0;
}
.el-container:nth-child(5) .el-aside,
.el-container:nth-child(6) .el-aside {
    line-height: 260px;
}
.el-container:nth-child(7) .el-aside {
    line-height: 320px;
}
.el-container{
    height: 100vh;
}
body{
    margin: 0;
}
iframe{
    width: 100%;
    height: calc(98vh - 60px);
    border: 0;
}